07/28/2025
Acupuncture treatments with Chinese Herbal Medicine have been highly effective to mitigate insomnia safely for a few centuries.
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Sleep deprivation can lead to a process where the brain appears to "eat itself" through excessive autophagy, a cellular cleanup mechanism. Normally, autophagy helps clear out damaged cells and proteins, maintaining brain health.
However, during prolonged sleep loss, this process becomes overactive, particularly in glial cells like astrocytes, which support neurons. Studies, such as one published in "Nature Communications", show that in sleep-deprived mice, astrocytes increase their phagocytic activity, breaking down synapses—the connections between neurons—more aggressively than in well-rested brains. This excessive pruning can impair cognitive functions, memory, and learning, as synapses are critical for neural communication.
Lack of sleep also triggers inflammation and oxidative stress, further prompting the brain to degrade its own components. Microglia, another type of glial cell, may also contribute by clearing out healthy neural structures under stress. While this doesn’t mean the brain is literally consuming itself, the overzealous cleanup mimics a self-destructive process.
Chronic sleep deprivation, defined as less than 6 hours per night, exacerbates these effects, potentially increasing risks for neurodegenerative disorders like Alzheimer’s. Adequate sleep—7 to 9 hours nightly—helps regulate autophagy, preserving synaptic health and cognitive function, underscoring the importance of rest for brain maintenance.
